by ericmark »
Sat Feb 23, 2008 12:25 am
It is the coming direct off a consumer unit that is main problem as to Part P. A spur off a ring main is allowed without Part P and I would think you will find Alarm people do this. The Plumbers have a special version of Part P which allows limited electrical work so you would most likely find they are Part P registered. Part P does not say you can't do the work but if you as non registered person want to do the work you must inform building controls first then complete the work then test the work fill out all the forms and return them to building control who will decide if your results look OK. If they think you may have got it wrong then they will then re-test your work. If they find it not to the regs then they will require you to rip it out and get it done again. There are links to Part P and if you think you can do it yourself down load the on line document and look at the forms you need to fill in. Starts on page 22 where I would think you will have a problem is measuring earth loop impedance, prospective short circuit current, insulation resistance, R1 + R2 and RCD tripping times. These all need expensive meters which need traceable records so borrowing them off a mate does not really work. Yes it does seem expensive for such a little job but the electrician has to fill in all these forms and keep copies and send them to clearing house who in turn send them to building controls and supply you with a copy any wonder the price has gone up? Smallest job still takes an hours labour once paper work is completed. On plus side you would not believe how many faults are found because everything is tested. Not on job being done but high lighted faults that have existed for a long time.